Comparisons of enhanced absorption in closely-coupled grating-mirror and random particle-mirror systems

Arnold, MD; Smith, GB

Comparisons of enhanced absorption in closely-coupled grating-mirror and random particle-mirror systems

Arnold, MD

Smith, GB

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Publication Type:: Conference Proceeding
Citation:: Proceedings of SPIE - The International Society for Optical Engineering, 2009, 7404
Issue Date:: 2009-11-23

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Field	Value	Language
dc.contributor.author	Arnold, MD https://orcid.org/0000-0003-4164-0242	en_US
dc.contributor.author	Smith, GB https://orcid.org/0000-0002-6985-2880	en_US
dc.date.issued	2009-11-23	en_US
dc.identifier.citation	Proceedings of SPIE - The International Society for Optical Engineering, 2009, 7404	en_US
dc.identifier.isbn	9780819476944	en_US
dc.identifier.issn	0277-786X	en_US
dc.identifier.uri	http://hdl.handle.net/10453/11872
dc.description.abstract	The grating-mirror geometry is a particularly rich plasmonic system due to the coupling of localized and global modes, and it is applicable to negative index materials, plasmonic imaging, and spectral filters. Recently absorption in sub-percolative films was found to be greatly enhanced by the addition of a mirror - a situation that is also reasonably modeled by a grating-mirror geometry. A great deal of attention has been focused on the coupling of barely-sub-wavelength periodic grating modes to surface plasmon polaritons that exhibit sharp spectral features. In contrast, island films have only quasi-periodicity at a few tens of nanometers, and produce broader spectral features, suggesting the influence of localized surface plasmons. In this work we examine how absorption is affected by variations in geometry of grating-mirror systems, to identify basic physics for future investigations of particle-mirror systems. © 2009 SPIE.	en_US
dc.relation.ispartof	Proceedings of SPIE - The International Society for Optical Engineering	en_US
dc.relation.isbasedon	10.1117/12.828125	en_US
dc.title	Comparisons of enhanced absorption in closely-coupled grating-mirror and random particle-mirror systems	en_US
dc.type	Conference Proceeding
utslib.citation.volume	7404	en_US
utslib.for	0205 Optical Physics	en_US
dc.location.activity	San Diego, USA	en_US
dc.location.activity	San Diego, CA
pubs.embargo.period	Not known	en_US
pubs.organisational-group	/University of Technology Sydney
pubs.organisational-group	/University of Technology Sydney/Faculty of Science
pubs.organisational-group	/University of Technology Sydney/Faculty of Science/School of Mathematical and Physical Sciences
utslib.copyright.status	open_access
pubs.publication-status	Published	en_US
pubs.volume	7404	en_US

Abstract:

The grating-mirror geometry is a particularly rich plasmonic system due to the coupling of localized and global modes, and it is applicable to negative index materials, plasmonic imaging, and spectral filters. Recently absorption in sub-percolative films was found to be greatly enhanced by the addition of a mirror - a situation that is also reasonably modeled by a grating-mirror geometry. A great deal of attention has been focused on the coupling of barely-sub-wavelength periodic grating modes to surface plasmon polaritons that exhibit sharp spectral features. In contrast, island films have only quasi-periodicity at a few tens of nanometers, and produce broader spectral features, suggesting the influence of localized surface plasmons. In this work we examine how absorption is affected by variations in geometry of grating-mirror systems, to identify basic physics for future investigations of particle-mirror systems. © 2009 SPIE.

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